摘要
目的:探讨MRI显示后交叉韧带(PCL)的方法及其正常表现。方法:对40例正常志愿者膝关节行T2WI对比的三维梯度回波多回波成像(3D-MEDIC)检查,通过多平面重建显示PCL的形态。结果:经过多平面重建,在横轴位、矢状位和冠状位层面显示PCL良好的形态和较清晰的边界。PCL解剖测量值:中段宽度(1.13±0.17)cm,厚度(0.49±0.10)cm;长度,后内侧缘(2.58±0.35)cm,前外侧缘(3.78±0.36)cm;偏离角,后内侧缘19.1°±5.5°,前外侧缘24.0°±4.6°;PCL仰角40.1°±4.43°。结论:利用高分辨三维MRI成像多平面重建技术有助于更好的观测PCL。
Objective： To investigate the imaging method of posterior cruciate ligament（PCL） and its normal appearances in MRI. Methods： The T2-weighted, 3-dimensional multi echo data imaging combination （3D-MEDIC） sequence were applied on 40 cases of normal volunteers. The anatomy of the PCL was displayed on multiple planar reconstruction （MPR） imaging. Result： The reconstructed PCL had good morphology and well-defined boundary, providing precise anatomic data. The width and thickness in the middle part of the PCL were （1.13±0.17）cm and （0.49±0.10）cm, respectively. The length and deveation angle of anterior lateral bundle and posterior medial bundle of the PCL were （3.78±0.36）cm and （2.58±0.35）cm, and 24.0°±4.6° and 19.1°±5.5°, respectively. The elevation angle of PCL was 40.1°±4.43°. Conclusion： Using MPR 3D high resolution MRI can contribute to display the PCL.
出处
《中国临床医学影像杂志》
CAS
北大核心
2009年第9期705-707,共3页
Journal of China Clinic Medical Imaging
关键词
后交叉韧带
磁共振成像
Posterior cruciate ligament
Magnetic resonance imaging
